Skater squat countdown. Do 6 reps, then a 6 second iso hold, then 5 reps, then a 5 second iso hold, then 4 reps, then a 4 second iso hold, all the way down to 1. I also did an extra rep at the end for good measure. These will really fry your legs without putting a lot of undue stress on the lower back and knees. Awesome!
Hide player controls
Hide resume playing